I have this weird buzzing sound with my 2008 Audi A4 (B8) coming - probably - from the front axle. First I thought it was the engine or exhaust making this sound, but the sound is not dependent on engine RPM. Also to mention, the sound is neither dependent on steering/fast cornering like ball bearings usually are.
I changed the driver side ball bearing with no luck of fixing the sound. The sound is very audible at around 50kmh and it increases its pitch when speed is increased.
Driver side CV joints were in normal shape, so I believe that the passenger side is as well. What could be making the sound?